.container {
    position: relative;
    display: flex;
    margin: 3px;
}

/* 左侧 */
.left-body {
    flex: 2;
    position: relative;
    overflow: hidden;
}


/* 中间 */
.mid-body {
    flex: 8;
    position: relative;
    margin-left: 10px;
    margin-right: 10px;
}

.category-name {
    font-size: 20px;
    font-weight: bold;
    height: 40px;
    line-height: 40px;
    margin: 5px;
    border-bottom: 1px solid #e3e3e4;
    color: rgb(7, 175, 88);
}

.category-title{
    margin-left: 10px;
}


.category-list{
    margin-left: 10px;
}


.sub-category-name{
    font-size: 16px;
    font-weight: bold;
    height: 40px;
    line-height: 40px;
    margin: 5px;
    border-bottom: 1px solid #e3e3e4;
    color: rgb(7, 175, 88);
}   

.sub-category-title{
    margin-left: 10px;
}

.article-name{
    font-size: 18px;
    height: 40px;
    line-height: 40px;
    margin: 5px;
    padding-left: 10px;
    color: rgb(65, 72, 69);
    cursor: pointer;
}

.article-title{
    margin-left: 10px;
}

/*右侧*/
.right-body {
    flex: 2.5;
    position: relative;
    min-height: 100vh;
    overflow: auto;
    border: #e3e3e4 1px solid;
    border-radius: 8px;
}